No, it doesn’t imply Zimmerman pursued Martin. Stand Your Ground implies just that: you stood your ground. It removes the “duty to retreat” which plagues states like mine. Zimmerman wasn’t standing, and so had no ability let alone duty to retreat, and for that reason it is not a Stand Your Ground case.
Unless regular, old self-defense is now handled under a law with “Stand Your Ground” in the title, in which case it would technically be a Stand Your Ground defense, even though it isn’t. But my understanding is the SYG law indemnifies you against arrest, not merely conviction, which is why he wasn’t under arrest before the public furor. So according to it he shouldn’t even be in a position to offer a defense, and wouldn’t be if it weren’t for this Nifong of a DA.
This case is about bringing a White Hispanic to justice for the unwarranted murder of a racially-priveledged young man in Obama/Holder's Afro-merica.